Steve Walker wrote:
snip
But all the sets I've seen are quite short - I've got a faulty hands-free
kit and all the screws are at the bottom of deep holes! If I look properly
I'll find a set, I've just not got round to it at the moment....

Define sorts of screws...
Alternatively, worst case, you can take a small drill on a dremel, and use it
to melt out the screws.